CN204001449U - Steel bar connecting structure - Google Patents
Steel bar connecting structure Download PDFInfo
- Publication number
- CN204001449U CN204001449U CN201420455726.XU CN201420455726U CN204001449U CN 204001449 U CN204001449 U CN 204001449U CN 201420455726 U CN201420455726 U CN 201420455726U CN 204001449 U CN204001449 U CN 204001449U
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- stud
- joint
- steel bar
- thread
- connecting structure
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Abstract
The utility model discloses a kind of steel bar connecting structure, comprise stud and with the joint of stud two ends threaded engagement, the hand of spiral at described stud two ends is contrary, described stud middle part is hexagonal (hexagon)nut, its advantage is: the stud that has hexagonal (hexagon)nut by use middle part is as syndeton, first joint is connected with reinforcing bar, being connected between joint and reinforcing bar can be both that extruding connects can be also that straight thread or taper thread connect, then use common spanner to connect two joints, easy to use, in addition, between stud and joint, adopt taper thread to be connected, guarantee bonding strength.
Description
Technical field
The utility model relates to a kind of steel bar connecting structure.
Background technology
Mechanical connection technique of reinforcement is that new reinforcing steel bar connects technique, is called as " third generation bar splice " continue colligation, electric welding after, have strength of joint higher than parent material of reinforcement rebar, speed than advantages such as fast 5 times of electric welding, pollution-free, saving steel 20%.
Reinforced bar mechanical connector type conventional on market is as follows:
One, sleeve extruding jointing: the joint that the plastic strain of connector steel bushing and the tight interlock of Ribbed Bar is formed by extruding force.Have two kinds of forms, radial compression connects and is connected with axial compression.Due to axial compression connect site operation inconvenience and joint quality stable not, be not promoted; And radial compression link technique, jointing has obtained spread use.The sleeve extruding jointing using in engineering is now all that radial compression connects.Due to its good quality, sleeve extruding jointing is widely used in construction work so far from twentieth century in China the beginning of the nineties, but owing to must using Large Hydraulic Equipment just can make joint meet connection standard, site operation inconvenience.
Two, taper thread jointing: the joint forming by the special tapered thread of steel bar end and the interlock of connector tapered thread.The birth of taper threaded connection technique has overcome the deficiency that sleeve extruding link technique exists.Taper thread silk head is prefabricated in advance completely, and it is short that joint connection in site takies the duration, and on-the-spot only need used moment wrench operated, do not need the equipment of moving and pulls electric wire, the favorable comment of Shen Shouge unit in charge of construction.But taper thread jointing quality is stable not.Because the taper thread path of machining screw has weakened the cross-sectional area of mother metal, thereby reduce strength of joint, generally can only reach 85～95% of the actual tensile strength of mother metal.Also there is certain gap with comparing abroad in the taper threaded connection technique of China, a most outstanding problem is exactly that pitch is single, from diameter 16～40mm reinforcing bar, adopting pitch is all 2.5mm, and 2.5mm pitch is best suited for the connection of diameter 22mm reinforcing bar, the intensity that too slightly or too fine steel rib connects is all undesirable, especially diameter is 36mm, and the taper thread of 40mm reinforcing bar connects, and is difficult to reach 0.9 times of the actual tensile strength of mother metal.Many production units are called oneself and are reached parent material of reinforcement rebar normal intensity, are the performances of having utilized parent material of reinforcement rebar superpower, and the actual tensile strength of reinforcing bar is greater than the standard value of Steel Bar Tensile Strength.Because taper threaded connection technique has, speed of application is fast, joint cost is low, has also obtained promoting the use of in a big way the beginning of the nineties, but because the defect existing is larger, replaced gradually by straight thread joint from twentieth century since popularization.
Three, straight thread joint
Straight thread equal strength straight thread joint is the up-to-date trend in the world that the twentieth century reinforcing bar nineties connects, joint quality is reliable and stable, bonding strength is high, can compare favourably with sleeve extruding jointing, and have again taper thread joint easy construction, fireballing feature, so the appearance of straight thread link technique has brought qualitative leap to rebar connecting technology.China's straight thread link technique presents the scene that a hundred flowers blossom at present, has occurred multiple straight thread type of attachment.
Straight thread joint mainly contains upsetting straight jointing and roll extrusion straight thread joint.These two kinds of processing modes that process using is different, the supporting capacity of reinforcing steel bar ends screw, reaches the object that joint and parent material of reinforcement rebar etc. are strong.
Straight thread connector needs special-purpose steel bar wrench just can reinforce the connection in constructing at the scene, steel bar wrench is to block joint middle part cylindrical-shaped structure by two sections of contrary arcuate serrated, and easily slippage, is inconvenient to operate.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of steel bar connecting structure, stud middle part adopts hexagonal (hexagon)nut, only need to use common wrench to operate, be convenient to connect fast, greatly improve efficiency of construction, meanwhile, adopt taper thread as auxiliary connection, can guarantee tight connection the between stud and joint.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of steel bar connecting structure, comprise stud and with the joint of stud two ends threaded engagement, the hand of spiral at described stud two ends is contrary, described stud middle part is hexagonal (hexagon)nut.
Described joint is stairstepping sleeve-like structure, and its endoporus is two-part screwed hole, and the hand of spiral of two sections of screw threads is contrary.
Described stud two ends are taper thread, and described structure and stud abutting end are conical screw hole.
The beneficial effect that adopts technique scheme to produce is: the stud that has hexagonal (hexagon)nut by use middle part is as syndeton, first joint is connected with reinforcing bar, being connected between joint and reinforcing bar can be both that extruding connects can be also that straight thread or taper thread connect, then use common spanner to connect two joints, easy to use, in addition, between stud and joint, adopt taper thread to be connected, guarantee bonding strength.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In the accompanying drawings: 1, joint; 2, stud.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Reinforcing steel bar machinery connects to mainly contain to push and connects and be threaded, but because connecting, extruding need to use Large Hydraulic Equipment guarantee joint and the extruding of reinforcing bar directly and between reinforcing bar to meet requirement of strength, site operation inconvenience, straight thread connector needs special-purpose steel bar wrench just can reinforce the connection in constructing at the scene, steel bar wrench is to block joint middle part cylindrical-shaped structure by two sections of contrary arcuate serrated, easily slippage, be inconvenient to operate, for this reason, the utility model provides a kind of a kind of steel bar connecting structure as shown in Figure 1, comprise stud 2 and with the joint 1 of stud 2 two ends threaded engagement, the hand of spiral at described stud 2 two ends is contrary, described stud 2 middle parts are hexagonal (hexagon)nut, joint 1 is stairstepping sleeve-like structure, its endoporus is two-part screwed hole, the hand of spiral of two sections of screw threads is contrary, described stud 2 two ends are taper thread, described joint 1 is conical screw hole with stud 2 abutting ends, other one section of joint can be straight thread, taper thread, also can directly by the mode of pushing, be connected with reinforcing bar, in Specific construction process, can first joint be connected with end reinforced, treat in reinforcing bar main body process of binding, re-use the joint of stud connecting reinforcement end, in connection procedure, only need to use common wrench, be simple and easy to use, convenient construction, and give full play to straight thread, the advantage of taper thread and extruding jointing.
In a word, the stud that the utility model has hexagonal (hexagon)nut by use middle part is as syndeton, first joint is connected with reinforcing bar, being connected between joint and reinforcing bar can be both that extruding connects can be also that straight thread or taper thread connect, then use common spanner to connect two joints, easy to use, in addition, between stud and joint, adopt taper thread to be connected, guarantee bonding strength.
Claims (3)
1. a steel bar connecting structure, is characterized in that: comprise stud (2) and with the joint (1) of stud (2) two ends threaded engagement, the hand of spiral at described stud (2) two ends is contrary, described stud (2) middle part is hexagonal (hexagon)nut.
2. steel bar connecting structure according to claim 1, is characterized in that: described joint (1) is stairstepping sleeve-like structure, and its endoporus is two-part screwed hole, and the hand of spiral of two sections of screw threads is contrary.
3. steel bar connecting structure according to claim 2, is characterized in that: described stud (2) two ends are taper thread, and described joint (1) is conical screw hole with stud (2) abutting end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455726.XU CN204001449U (en) | 2014-08-13 | 2014-08-13 | Steel bar connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455726.XU CN204001449U (en) | 2014-08-13 | 2014-08-13 | Steel bar connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204001449U true CN204001449U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420455726.XU Expired - Fee Related CN204001449U (en) | 2014-08-13 | 2014-08-13 | Steel bar connecting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204001449U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847056A (en) * | 2015-03-25 | 2015-08-19 | 河海大学 | Direct thread sleeve for connecting steel plate shear wall and reinforcing steel bar and construction method |
| CN105064622A (en) * | 2015-08-31 | 2015-11-18 | 裴敏雅 | Telescopic steel bar connecting external member |
| CN105217492A (en) * | 2015-09-23 | 2016-01-06 | 徐州重型机械有限公司 | Connecting device, crane arm and hoisting crane |
| CN105464291A (en) * | 2015-12-29 | 2016-04-06 | 河北易达钢筋连接技术有限公司 | Bursting reinforcement bar connecting sleeve |
| CN106284658A (en) * | 2016-10-17 | 2017-01-04 | 浙江工业大学工程设计集团有限公司 | Assembly concrete attachment structure |
| CN108331262A (en) * | 2018-02-06 | 2018-07-27 | 浙江大学建筑设计研究院有限公司 | A kind of steel concrete supporting structure and its installation method |
| CN110424633A (en) * | 2019-07-12 | 2019-11-08 | 周世宇 | A kind of screw-thread steel jointing |
-
2014
- 2014-08-13 CN CN201420455726.XU patent/CN204001449U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847056A (en) * | 2015-03-25 | 2015-08-19 | 河海大学 | Direct thread sleeve for connecting steel plate shear wall and reinforcing steel bar and construction method |
| CN105064622A (en) * | 2015-08-31 | 2015-11-18 | 裴敏雅 | Telescopic steel bar connecting external member |
| CN105064622B (en) * | 2015-08-31 | 2017-11-17 | 裴敏雅 | Telescopic bar connecting external member |
| CN105217492A (en) * | 2015-09-23 | 2016-01-06 | 徐州重型机械有限公司 | Connecting device, crane arm and hoisting crane |
| CN105217492B (en) * | 2015-09-23 | 2017-03-29 | 徐州重型机械有限公司 | Attachment means, crane arm and crane |
| CN105464291A (en) * | 2015-12-29 | 2016-04-06 | 河北易达钢筋连接技术有限公司 | Bursting reinforcement bar connecting sleeve |
| CN106284658A (en) * | 2016-10-17 | 2017-01-04 | 浙江工业大学工程设计集团有限公司 | Assembly concrete attachment structure |
| CN106284658B (en) * | 2016-10-17 | 2019-03-29 | 浙江工业大学工程设计集团有限公司 | Assembly concrete connection structure |
| CN108331262A (en) * | 2018-02-06 | 2018-07-27 | 浙江大学建筑设计研究院有限公司 | A kind of steel concrete supporting structure and its installation method |
| CN110424633A (en) * | 2019-07-12 | 2019-11-08 | 周世宇 | A kind of screw-thread steel jointing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |